Which equation represents the following relationship? When 2/3 is added to 1/3 of a number, it equals 0.

Answer 1

Let's call the number "x".
According to the given information, "2/3 added to 1/3 of a number" is equal to 0.
Mathematically, we can represent this as:

(1/3)x + 2/3 = 0